鞏固過程之文件流處理

1、圖片中寫文字

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

public class a {

	public static void main(String[] args) {
		try {
			File f1 = new File("C:/Users/Administrator/Desktop/海報/a.jpg");
			BufferedImage image = ImageIO.read(f1);
			Graphics g = image.getGraphics();
			g.setFont(new Font("Serif", Font.BOLD, 20));
			g.setColor(Color.red);
			g.drawString("happy new year!", 30, 100);
			File f2 = new File("C:/Users/Administrator/Desktop/海報/copy.jpg");
			ImageIO.write(image, "JPEG", f2);
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
}